nozurazumi 野面積

1　Also called *ishigaki 石垣; ishigaketsumi 石崖積; ishigakizumi 石垣積. A rough, unprocessed stone with one comparatively even surface used to make a stone garden wall. More of these stones are required to build a wall than if only rough stones are used. Also many rough stones are packed behind the visible stones for support. *Kuzurezumi 崩積 is the term used for completely rough stones of different sizes piled up into a wall. See *ransekizumi 乱石積, *gobōzumi 牛蒡積.

2　Lit. "natural-face masonry." Also nozurahagi 野面矧ぎ. Also written nozurazumi 野頬積. A technique used in building dry stone walls *ishigaki 石垣, supporting castle ramparts, towers and moats. The stones are worked very little, giving the wall a rough, natural appearance. The stones appear to be piled up randomly, but the technique actually makes use of stone groupings and gravity to create a strong wall. Nozurazumi walls are stable and drain well, although their slope is less steep than walls built by cut and inserted masonry *kirikomihagi 切込矧ぎ or pounded and inserted masonry *uchikomihagi 打込矧ぎ.